Danzig Gestapo HQ
Between 1939 and 1945, Gestapo in Danzig (now Gdansk) had its headquarters Okopowa 9. Its first chief was SS-Obersturmbannführer, Rudolf Tröger, who also was chief of Einsatzkommando 16, a commando that participated in mass executions of the Polish intelligentsia.
Current status: Preserved (2016).
Address: Okopowa 9, 80-819 Gdansk.
Get there: Tram.
Follow up in books: Höhne, Heinz: The Order of the Death’s Head: The story of Hitler’s SS (1969).
Above the main entrance, it is still possible to read the German, Polizeipräsidium, although there have been attempts to cover it up.